s1 = {10,20,30,40,50,60,70}
s2 = {10,20,30,40}
s3 = {10,20,30,100}
s4 = {1,2,3}
# 子集
print(s2.issubset(s1))
print(s3.issubset(s1))

# 超集
print(s1.issuperset(s2))
print(s1.issuperset(s3))

# 交集
print(s2.isdisjoint(s1))
print(s2.isdisjoint(s4))
